KGW Isotherm FB-0-CAL Borosilicate Dewar Flask for Cryogenic Sample Cooling

The KGW Isotherm FB-0-CAL is a precision-engineered Dewar flask designed for cryogenic sample cooling and short-distance internal storage of small volumes of liquid nitrogen (LN2), dry ice (CO2), or other refrigerants. Constructed with a borosilicate 3.3 glass interior, the flask provides excellent thermal insulation and chemical resistance, critical for maintaining sample integrity in biotechnology and molecular diagnostics workflows.

• Capacity: Holds up to 150 mL of liquid nitrogen with a low evaporation rate of 0.25 L/day, ensuring efficient cold storage in bioprocessing and synthetic biology research.
• Dimensions: Inner chamber measures 37 mm diameter by 140 mm height; overall size 58 mm diameter by 170 mm height, optimized for benchtop laboratory use.
• Design Features:
• Flat-bottomed base suitable for stable placement on magnetic stirrers, enabling live-cell imaging sample preparations and precise temperature control during biochemical assays.
• Anti-magnetic aluminum cover to minimize magnetic interference, essential in sensitive biomanufacturing environments and fluorescence analysis.
• Ergonomic grip facilitates easy handling during the transport of cryogenic samples used in gene editing and molecular cloning workflows.

This Dewar flask is indispensable in biomedical engineering labs requiring reliable cryogenic storage with compatibility for agitation systems. Its combination of durable borosilicate glass and specialized design makes it an ideal vessel for biopharmaceutical production pipelines and clinical diagnostics applications involving low-temperature preservation and temperature-sensitive sample processing.